0.47 µF, 20 V, 0805 — TAJ series molded tantalum
The TAJR474K020RNJ is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated at 0.47 µF with ±10% tolerance and a 20 VDC voltage rating. Housed in an 0805 (2012 Metric) surface-mount package, it measures 2.05 mm x 1.30 mm with a seated height of 1.20 mm — a compact footprint for dense PCB layouts. The 25 Ohm ESR (Equivalent Series Resistance) is the key parameter for ripple current handling and decoupling effectiveness; at this value, the part is suited for low-frequency bypass or bulk storage rather than high-ripple power rail filtering.
The molded construction provides mechanical robustness and moisture resistance suitable for conformal-coated assemblies and moderate vibration environments.